Genetic diversity and population structure of Eucommia ulmoides Oliver, an endangered medicinal plant in China
Eucommia ulmoides Oliver, one of the tertiary relict species found only in China, is the only extant species of Eucommiaceae. Using inter-simple sequence repeat (ISSR) and sequence-related amplified polymorphism (SRAP) markers, we studied the genetic diversity and population genetic structure of 187 accessions from 17 E. ulmoides populations throughout its main distribution in China. A total of 65 bands were amplified using eight ISSR primers, of which 50 bands (76.9%) were polymorphic.